Update, 12:30 p.m. April 20: Police have located a driver who may have been chasing another vehicle that crashed on I-70, killing two Ben Davis High School students.

Indiana State Police Sgt. John Perrine did not identify the driver in a news release Thursday.

"This is a complex investigation with many questions left to answer," Perrine said.

Taylor Parsons, 17, was driving the 2002 Nissan Pathfinder that crashed near the Harding Street exit about 9:15 p.m. Tuesday. No one wore seat belts and all five occupants were ejected from the vehicle as it rolled multiple times.

Parsons and Brandon Gross, 18, died. Both were students at Ben Davis.

Kristopher Church, 17; Michael Blackmore, 19; and Olivia Evans, 18, all of Indianapolis, were hospitalized. Police said Church was taken to Eskenazi Hospital in critical condition.

Investigators think a second vehicle may have been chasing Parsons when she lost control.

"Police have determined there was some type of altercation at Rhodius Park between the teenagers in the silver Nissan and other people," Perrine said.

Rhodius Park is located on West Wilkins Street and South Belmont Avenue, about a half-mile west of the crash site.

Brandon Gross, a senior, and junior Taylor Parsons died when Parsons' Nissan Pathfinder crashed near the Harding Street exit about 9:15 p.m. Tuesday, according to Indiana State Police. No one wore seat belts and all five occupants were ejected from the vehicle as it rolled multiple times.

Passengers Kristopher Church, 17; Michael Blackmore, 19; and Olivia Evans, 18, all of Indianapolis, were hospitalized following the crash. Police said Church was taken to Eskenazi Hospital where he is listed in critical condition.

Blackmore and Evans were both listed in serious but stable condition at IU Health Methodist Hospital.

Evans was also a Ben Davis student, according to Wayne Township Schools. Church and Blackmore are former students of the school.

Gross, 18, was a member of ROTC program's rifle drill team, his friend Jennifer Silva-Duran told IndyStar on Wednesday. He was "pretty great" at the precision rifle drill moves that include spins and pops while marching, she said.

Silva-Duran said she and Gross became "best buds" after she joined ROTC in the fall. He was athletic and good at ROTC's daily physical training exercises.

"He would teach me how to do different tricks and we would start talking," she said.

Gross, she said, would talk to her about the teenage emotional issues they shared. After graduation, Silva-Duran said Gross was looking forward to enlisting in the U.S. Marine Corps.

Taylor Parsons.(Photo: Provided by Bethany Richmond.)

Parsons, 17, was sweet and funny and "knew how to put a smile on your face," her friend Bethany Richmond told IndyStar.

"She was just such a beautiful soul," said the 17-year-old Ben Davis junior. "She was such a happy person."

Parsons was driving the 2002 Nissan that crashed, police said. Investigators think another vehicle may have been chasing her when she lost control and the vehicle flipped.

Police said the chase may have started after an incident at Rhodius Park on West Wilkins Street, which is located less than a half-mile from where the crash took place.

Richmond said she and Parsons had been best friends since eighth grade. Parsons lived for the moment and hadn't made any firm decisions about life after high school, Richmond said. She was looking forward to graduation.

The two exchanged text messages Tuesday, Richmond said.

"I want people to know how good of a person she was," Richmond said. "She wouldn't want anybody crying and being upset about her death.

"She would want people to remember her as a happy person."

Wayne Township Schools spokeswoman Mary Lang in a statement said the district was "heartbroken" by the deaths. Grief counselors were at the high school Wednesday to help the students cope, Lang said.

"This loss will be felt by our entire community," Lang said.

Each time I return home from a fatal crash I hug my family a little tighter